decode bonk.io levelData (UNFINISHED TYPES)

decodeMap.ts

import LZString from "lz-string";

class ByteBuffer {
  off: number = 0;

  constructor(public buf: Buffer, public littleEndian: boolean) {}

  readShort() {
    const v = this.buf[this.littleEndian ? "readInt16LE" : "readInt16BE"](
      this.off,
    );
    this.off += 2;
    return v;
  }

  readDouble() {
    const v = this.buf[this.littleEndian ? "readDoubleLE" : "readDoubleBE"](
      this.off,
    );
    this.off += 8;
    return v;
  }

  readFloat() {
    const v = this.buf[this.littleEndian ? "readFloatLE" : "readFloatBE"](
      this.off,
    );
    this.off += 4;
    return v;
  }

  readByte() {
    return this.buf[this.off++];
  }

  readBoolean() {
    return Boolean(this.readByte());
  }

  readUTF() {
    const length = this.readShort();
    return this.buf.toString("utf-8", this.off, (this.off += length));
  }

  readUint() {
    const v = this.buf[this.littleEndian ? "readUint32LE" : "readUint32BE"](
      this.off,
    );
    this.off += 4;
    return v;
  }

  readInt() {
    const v = this.buf[this.littleEndian ? "readInt32LE" : "readInt32BE"](
      this.off
    );
    this.off += 4;
    return v;
  }

  static fromBase64(data: string, littleEndian: boolean) {
    return new this(Buffer.from(data, "base64"), littleEndian);
  }
}

class MapUtils {
  static getBlankMap() {
    return {
      v: 1,
      s: {
        re: false,
        nc: false,
        pq: 1,
        gd: 25,
        fl: false,
      },
      physics: {
        shapes: [],
        fixtures: [],
        bodies: [],
        bro: [],
        joints: [],
        ppm: 12,
      },
      spawns: [],
      capZones: [],
      m: {
        a: "noauthor",
        n: "noname",
        dbv: 2,
        dbid: -1,
        authid: -1,
        date: "",
        rxid: 0,
        rxn: "",
        rxa: "",
        rxdb: 1,
        cr: [],
        pub: false,
        mo: "",
      },
    };
  }

  static getNewBoxShape() {
    return {
      type: "bx",
      w: 10,
      h: 40,
      c: [0, 0],
      a: 0,
      sk: false,
    };
  }

  static getNewPolyShape() {
    return {
      type: "po",
      v: [],
      s: 1,
      a: 0,
      c: [0, 0],
    };
  }

  static getNewFixture() {
    return {
      n: "Def Fix",
      fr: 0.3,
      fp: null,
      re: 0.8,
      de: 0.3,
      f: 5209260,
      d: false,
      np: false,
      ng: false,
    };
  }

  static getNewBody() {
    return {
      p: [0, 0],
      a: 0,
      lv: [0, 0],
      av: 0,
      cf: {
        x: 0,
        y: 0,
        w: true,
        ct: 0,
      },
      fx: [],
      fz: {
        on: false,
        x: 0,
        y: 0,
        d: true,
        p: true,
        a: true,
        t: 0,
        cf: 0,
      },
      s: {
        type: "s",
        n: "Unnamed",
        fric: 0.3,
        fricp: false,
        re: 0.8,
        de: 0.3,
        ld: 0,
        ad: 0,
        fr: false,
        bu: false,
        f_c: 1,
        f_p: true,
        f_1: true,
        f_2: true,
        f_3: true,
        f_4: true,
      },
    };
  }

  static getNewSpawn() {
    return {
      x: 400,
      y: 300,
      xv: 0,
      yv: 0,
      priority: 5,
      r: true,
      f: true,
      b: true,
      gr: false,
      ye: false,
      n: "Spawn",
    };
  }

  static getNewCapZone() {
    return {
      n: "Cap Zone",
      ty: 1,
      l: 10,
      i: -1,
    };
  }

  static getNewRevoluteJoint() {
    return {
      type: "rv",
      d: {
        la: 0,
        ua: 0,
        mmt: 0,
        ms: 0,
        el: false,
        em: false,
        cc: false,
        bf: 0,
        dl: true,
      },
      aa: [0, 0],
    };
  }

  static getNewDistanceJoint() {
    return {
      type: "d",
      d: {
        fh: 0,
        dr: 0,
        cc: false,
        bf: 0,
        dl: true,
      },
      aa: [0, 0],
      ab: [0, 0],
    };
  }

  static getNewLPJJoint() {
    return {
      type: "lpj",
      d: {
        cc: false,
        bf: 0,
        dl: true,
      },
      pax: 0,
      pay: 0,
      pa: 0,
      pf: 0,
      pl: 0,
      pu: 0,
      plen: 0,
      pms: 0,
    };
  }

  static getNewLSJJoint() {
    return {
      type: "lsj",
      d: {
        cc: false,
        bf: 0,
        dl: true,
      },
      sax: 0,
      say: 0,
      sf: 0,
      slen: 0,
    };
  }

  static getNewGearJoint() {
    return {
      type: "g",
      n: "Gear Joint",
      ja: -1,
      jb: -1,
      r: 1,
    };
  }

  static getNewCircleShape() {
    return {
      type: "ci",
      r: 25,
      c: [0, 0],
      sk: false,
    };
  }
}

const game = {
  mapVersion: 15,
};

function decodeFromDatabase(levelData: string) {
  const decompressed = LZString.decompressFromEncodedURIComponent(levelData);
  let buffer = ByteBuffer.fromBase64(decompressed, false);

  const level = MapUtils.getBlankMap();
  const physics = level.physics;
  level.v = buffer.readShort();
  if (level.v > game.mapVersion) {
    throw new Error("Future map version, please refresh page");
  }
  level.s.re = buffer.readBoolean();
  level.s.nc = buffer.readBoolean();
  if (level.v >= 3) {
    level.s.pq = buffer.readShort();
  }
  if (level.v >= 4 && level.v <= 12) {
    level.s.gd = buffer.readShort();
  } else if (level.v >= 13) {
    level.s.gd = buffer.readFloat();
  }
  if (level.v >= 9) {
    level.s.fl = buffer.readBoolean();
  }
  level.m.rxn = buffer.readUTF();
  level.m.rxa = buffer.readUTF();
  level.m.rxid = buffer.readUint();
  level.m.rxdb = buffer.readShort();
  level.m.n = buffer.readUTF();
  level.m.a = buffer.readUTF();
  if (level.v >= 10) {
    level.m.vu = buffer.readUint();
    level.m.vd = buffer.readUint();
  }
  if (level.v >= 4) {
    let size = buffer.readShort();
    for (let i = 0; i < size; i++) {
      level.m.cr.push(buffer.readUTF());
    }
  }
  if (level.v >= 5) {
    level.m.mo = buffer.readUTF();
    level.m.dbid = buffer.readInt();
  }
  if (level.v >= 7) {
    level.m.pub = buffer.readBoolean();
  }
  if (level.v >= 8) {
    level.m.dbv = buffer.readInt();
  }
  physics.ppm = buffer.readShort();
  let size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    physics.bro[i] = buffer.readShort();
  }
  size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    let type = buffer.readShort();
    if (type == 1) {
      physics.shapes[i] = MapUtils.getNewBoxShape();
      physics.shapes[i].w = buffer.readDouble();
      physics.shapes[i].h = buffer.readDouble();
      physics.shapes[i].c = [buffer.readDouble(), buffer.readDouble()];
      physics.shapes[i].a = buffer.readDouble();
      physics.shapes[i].sk = buffer.readBoolean();
    }
    if (type == 2) {
      physics.shapes[i] = MapUtils.getNewCircleShape();
      physics.shapes[i].r = buffer.readDouble();
      physics.shapes[i].c = [buffer.readDouble(), buffer.readDouble()];
      physics.shapes[i].sk = buffer.readBoolean();
    }
    if (type == 3) {
      physics.shapes[i] = MapUtils.getNewPolyShape();
      physics.shapes[i].s = buffer.readDouble();
      physics.shapes[i].a = buffer.readDouble();
      physics.shapes[i].c = [buffer.readDouble(), buffer.readDouble()];
      let inner_size = buffer.readShort();
      physics.shapes[i].v = [];
      for (let j = 0; j < inner_size; j++) {
        physics.shapes[i].v.push([buffer.readDouble(), buffer.readDouble()]);
      }
    }
  }
  size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    physics.fixtures[i] = MapUtils.getNewFixture();
    physics.fixtures[i].sh = buffer.readShort();
    physics.fixtures[i].n = buffer.readUTF();
    physics.fixtures[i].fr = buffer.readDouble();
    if (physics.fixtures[i].fr == Number.MAX_VALUE) {
      physics.fixtures[i].fr = null;
    }
    let type = buffer.readShort();
    if (type == 0) {
      physics.fixtures[i].fp = null;
    }
    if (type == 1) {
      physics.fixtures[i].fp = false;
    }
    if (type == 2) {
      physics.fixtures[i].fp = true;
    }
    physics.fixtures[i].re = buffer.readDouble();
    if (physics.fixtures[i].re == Number.MAX_VALUE) {
      physics.fixtures[i].re = null;
    }
    physics.fixtures[i].de = buffer.readDouble();
    if (physics.fixtures[i].de == Number.MAX_VALUE) {
      physics.fixtures[i].de = null;
    }
    physics.fixtures[i].f = buffer.readUint();
    physics.fixtures[i].d = buffer.readBoolean();
    physics.fixtures[i].np = buffer.readBoolean();
    if (level.v >= 11) {
      physics.fixtures[i].ng = buffer.readBoolean();
    }
    if (level.v >= 12) {
      physics.fixtures[i].ig = buffer.readBoolean();
    }
  }
  size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    physics.bodies[i] = MapUtils.getNewBody();
    physics.bodies[i].s.type = buffer.readUTF();
    physics.bodies[i].s.n = buffer.readUTF();
    physics.bodies[i].p = [buffer.readDouble(), buffer.readDouble()];
    physics.bodies[i].a = buffer.readDouble();
    physics.bodies[i].s.fric = buffer.readDouble();
    physics.bodies[i].s.fricp = buffer.readBoolean();
    physics.bodies[i].s.re = buffer.readDouble();
    physics.bodies[i].s.de = buffer.readDouble();
    physics.bodies[i].lv = [buffer.readDouble(), buffer.readDouble()];
    physics.bodies[i].av = buffer.readDouble();
    physics.bodies[i].s.ld = buffer.readDouble();
    physics.bodies[i].s.ad = buffer.readDouble();
    physics.bodies[i].s.fr = buffer.readBoolean();
    physics.bodies[i].s.bu = buffer.readBoolean();
    physics.bodies[i].cf.x = buffer.readDouble();
    physics.bodies[i].cf.y = buffer.readDouble();
    physics.bodies[i].cf.ct = buffer.readDouble();
    physics.bodies[i].cf.w = buffer.readBoolean();
    physics.bodies[i].s.f_c = buffer.readShort();
    physics.bodies[i].s.f_1 = buffer.readBoolean();
    physics.bodies[i].s.f_2 = buffer.readBoolean();
    physics.bodies[i].s.f_3 = buffer.readBoolean();
    physics.bodies[i].s.f_4 = buffer.readBoolean();
    if (level.v >= 2) {
      physics.bodies[i].s.f_p = buffer.readBoolean();
    }
    if (level.v >= 14) {
      physics.bodies[i].fz.on = buffer.readBoolean();
      if (physics.bodies[i].fz.on) {
        physics.bodies[i].fz.x = buffer.readDouble();
        physics.bodies[i].fz.y = buffer.readDouble();
        physics.bodies[i].fz.d = buffer.readBoolean();
        physics.bodies[i].fz.p = buffer.readBoolean();
        physics.bodies[i].fz.a = buffer.readBoolean();
        if (level.v >= 15) {
          physics.bodies[i].fz.t = buffer.readShort();
          physics.bodies[i].fz.cf = buffer.readDouble();
        }
      }
    }
    let inner_size = buffer.readShort();
    for (let j = 0; j < inner_size; j++) {
      physics.bodies[i].fx.push(buffer.readShort());
    }
  }
  size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    level.spawns[i] = MapUtils.getNewSpawn();
    let spawn = level.spawns[i];
    spawn.x = buffer.readDouble();
    spawn.y = buffer.readDouble();
    spawn.xv = buffer.readDouble();
    spawn.yv = buffer.readDouble();
    spawn.priority = buffer.readShort();
    spawn.r = buffer.readBoolean();
    spawn.f = buffer.readBoolean();
    spawn.b = buffer.readBoolean();
    spawn.gr = buffer.readBoolean();
    spawn.ye = buffer.readBoolean();
    spawn.n = buffer.readUTF();
  }
  size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    level.capZones[i] = MapUtils.getNewCapZone();
    level.capZones[i].n = buffer.readUTF();
    level.capZones[i].l = buffer.readDouble();
    level.capZones[i].i = buffer.readShort();
    if (level.v >= 6) {
      level.capZones[i].ty = buffer.readShort();
    }
  }
  size = buffer.readShort();
  for (let i = 0; i < size; i++) {
    let type = buffer.readShort();
    if (type == 1) {
      physics.joints[i] = MapUtils.getNewRevoluteJoint();
      let joint = physics.joints[i];
      joint.d.la = buffer.readDouble();
      joint.d.ua = buffer.readDouble();
      joint.d.mmt = buffer.readDouble();
      joint.d.ms = buffer.readDouble();
      joint.d.el = buffer.readBoolean();
      joint.d.em = buffer.readBoolean();
      joint.aa = [buffer.readDouble(), buffer.readDouble()];
    }
    if (type == 2) {
      physics.joints[i] = MapUtils.getNewDistanceJoint();
      let joint = physics.joints[i];
      joint.d.fh = buffer.readDouble();
      joint.d.dr = buffer.readDouble();
      joint.aa = [buffer.readDouble(), buffer.readDouble()];
      joint.ab = [buffer.readDouble(), buffer.readDouble()];
    }
    if (type == 3) {
      physics.joints[i] = MapUtils.getNewLPJJoint();
      let joint = physics.joints[i];
      joint.pax = buffer.readDouble();
      joint.pay = buffer.readDouble();
      joint.pa = buffer.readDouble();
      joint.pf = buffer.readDouble();
      joint.pl = buffer.readDouble();
      joint.pu = buffer.readDouble();
      joint.plen = buffer.readDouble();
      joint.pms = buffer.readDouble();
    }
    if (type == 4) {
      physics.joints[i] = MapUtils.getNewLSJJoint();
      let joint = physics.joints[i];
      joint.sax = buffer.readDouble();
      joint.say = buffer.readDouble();
      joint.sf = buffer.readDouble();
      joint.slen = buffer.readDouble();
    }
    if (type == 5) {
      physics.joints[i] = MapUtils.getNewGearJoint();
      let joint = physics.joints[i];
      joint.n = buffer.readUTF();
      joint.ja = buffer.readShort();
      joint.jb = buffer.readShort();
      joint.r = buffer.readDouble();
    }
    if (type != 5) {
      physics.joints[i].ba = buffer.readShort();
      physics.joints[i].bb = buffer.readShort();
      physics.joints[i].d.cc = buffer.readBoolean();
      physics.joints[i].d.bf = buffer.readDouble();
      physics.joints[i].d.dl = buffer.readBoolean();
    }
  }
  return level;
}

console.log(
  decodeFromDatabase(
    "ILAcJAhBFBjBzCTlMsSAlAlgIwMqQBWsAdgGoAuAmgLYAeADjjQlQEyMBaNV8AcgHdgAGQwANADYTYARgCckWnQAWAUxoBVFCjTAKAMVUB1MgC8xABn24A4voBsnaBEwzh8AKJIAwiADWwDZCugCSIEJewFqQiAASIIjezgDSIADOwAAiIHwgACxZQs6QXh6IACrozvrORuiwgSCc6AD2SAwgAFLA+tp9-f0AsgD0choAbjYMANTTACYUA0vLhfps2tn42oOQOM4oAjYWiMjZYoPbkDT726MTU7MLK8-aQTY29gx0AOwACpCZHDAHDfewhfQCCzlACuaRiVG0AlimSEp2AlkuAgCBzWG2BeEusFRyEOzRQZwsl0IAxGY0mM3mixezJAHkOnROqGAAENfCgdspoQBHWCqUwCaBsQ6zLCQWB8DzfABO6Mp-KIfQE+jkePKCL6mV+wzIwjoQoAZuMSHsWczIALhaLxZLpdNZfLFSqqNzLhZ9SSHHjYKZLvB-UgkSj+hpvL8LihoDA8bRtt5OvHkONhn5OHRzS1oXg8hkQCNwLaK0gUTZypyINkNOGIDs-AUEzZhnWQNluakUB5IOM27dy5XK5EKwOYojMtjkGhutop13lmhoE2q0ax2PdBW0L8V8ALlptNB9DZtGgAPI3F5n4QDUzDYnblm-YBkE-ILzQvrQJK2jsNiHtAHg+v0T4vq+Ly5LWlzAae2p4rk0HaJBqEshmtqgcOXJ4Lezxnuaj7PhhzLvhgfQ7NOZFASBmS4Sg6Fkc8743thAGYZANHIKBBHIMxLHLGx-FHsAaoJkm5LACh-JRH+mSiRAglCQMlTseqE4kopeKUSx2R6f2wDTDSwyjqp-Rsh4c5VsARiidRh5ajZLg9FRMBKduhrDBZyyUr+iLnkJAgeKJ2Trv03m+UsoAlJqHgXjowBFpcPFkVF0X9LFi44i50EhYxUDADlGxbplfSxRgTn6AF87Fe5OCHq+GXlSg4AAKzxZ5lZah0SURQaZWtagA54FB4T6A+SVkO5Y0sTs0CiQIs4keNrXvlQG7RQKIHWatw3IO+9mXFV82QGQ3X7QdEC5BgbTqqdCYeIVrUqQdWEsmeM0sgOWlIGeiV9G9w2XQMfGXlEW2-X++gvdksnfpgTVHmZ131stoPpTJfQDo9I5o92IW1a1aB3UuSNDKjBNsrETjSbAX5IAO7USRGsQla5qh9YjACea1IrA-FoLAeUQEk3gvah4tw8A76ptyf3IEkmSHtkBKpn4YT9OLqt2aLgzeEK919OLxu2VQPOpqYgva6BfJojgH2lt4ADMnDI0kHj27ZsBO0e3jfHBJt20GnX8t4wx8B7IfSXMjPNpkRBrSAyuK1kwCqFRmQq8nwDc1kZBkNCzD6BQnD2fAGhsMoyiwDYZDDN8wzNy3zeoua0yt63ciN13LcCJAvzmska1eJkhfFzQpfl9AlfV7X9e933pHAB3y+jEvfdCDQNjKCEu4QGE49FyXZcV1XNd1w3TfL+3nfLz3N9b8AO97wfpYFyfU9n7PF8L9f6877r0foAl+u994Jk-pPae5955X03l3IBD8EGt23uA9+8lj7QJ-nPS+i8n6IJAGvZBBDUFgLfigBEWDT4z1wf-FB-ciH3z7iA2+5CIHIAaNQ7+tC-7wNIYw1ezCu6sK3pAMQ2BDyIG4TA3+cD8GgKEcAhhbdxGSO0AEGROC+EKLYUokhgC1FYEPG0LRvD5EAL0cQlhKjnyQCVGYNOGQzGwLwZY5++ibECNUdCIw5QtYkigTQ1x9DvEr2sSI2xA9BjQFMH7SkLi5FuKiUw5RYTomxL9gURJdD+GKIid3KJ9jHHaHADknR7jCGeMiek+0mSkpBJ4SEvJVjhGFNqQ40wis4rlIsSk6p7TDGdO6UfCewSkmhPyW0luojEGQF8f4nQFxenJPSakgxt86lxJ0M4FZkzWlpKGSU+cWg9ktI8QUmZRSJHGJ0FQsZTSJnnKqZc5uszUHFK6ToLhDzZG5N0Rc6ZbyinDCoKYM2UBpG-O0X0tZAyrm1NBeCnQmjoXmNWVMw5t9vBYCwBoPKkBTFouaQCl5QKN7pJxXiglzjiVPNJWQ+FwLEVgohegIQZyGWCNeRSwBVL8U6ASXS-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-Z1DEXrqaa-dpiAzh4z6eAIZmgwHQNkD8KBUW8MKxWavT5JDd78uOcKxhFzOG3MgDVJ5htlEEYYUC9oCO5kqyhfsz1g6UXtMTjHogHjIA+MCaEyJsTP4FKYxC9lodh0VNhb9vNoSxX+ubrK7LEAlXqu1ZM0FaaLX4PaBsygOzKHuvne3H10CA3dzDZI344AGlEb+ZWBNlAU2DSzZY79zKi3ON+tCugeLm2ktiYWqJf8MG4eHaUyd-LiPoqXYB9dr9yU7v-sAzV4z9WtT9tct9N8b2UAfeQF91TP3Se2n+7h7D9oQDA+88AKgacBxGGRje0dsONjw+Y3z3yyOYt+t6Oj9bCWtvJZ2PAXH+hIMvCywpo7SA8uneV6pcnpWqffUq-oJUhwZCntVJZ9nmZ2u2c699q3QkBeA-1MdOyPkyT9kgJD5Y0OlbBZm-OsLfuhKq63eruLUAcCxUIFtRrtoTd9By9oC3JPE8YRt2uG7+oHfjCRFNOq+F3fWa959n3POS+9ap651ykBsTB6MD5OO2xxIVmjz4WP9ZFeLrbxhZPy3AirbJLsWKMglo6Vk-J-PZuIBF5Q1P6CZfKfXaBD0bE+hq98eQq9xvN6W8Pt36+APXfUS958tyByQ-bQj7FmP7sE-l13+3DPi6rEMULuhtolttilvYEJHntoAXigNvmpv-pWPvjphnDTiAGQFgMJnQGkKoH4HFIiJ0KzsbuvrAZviAAgUunfhcKzC8KEJ3mLIgMRHyCEM4BZt4BcIuBILWgiJ0EIPdPEFQPrJACQBZL0BTi4GQIIFQGIHMMTIlNkEgbaBHKjNADYBlroGdkoQMEaHYjyEpJELztoegLoZRvnLxOnMYS8PoM3OAGoRoR-FYc8DgKovoTjOEE4SsJAC3GYf0Lsp4SsCELYZuuoX0JoQEcsCQK4a-u4cAEYdod4FmD5AOOYf9JYREabqoaERDGJBkRBNEQYR4XkRsOaM3L4X+OkcUcgFeMEfYWEY4VUVzgUbEfEUoR4KYSkX4ZUY0SABgLUdkQ0loRkZAIOnoTEUuEUT0ayD4Z0RUYoVMSABoP0Q4bkQseIs0RMXEQsXdkkeUaeN0T0WIMsfUasVMUQBsUZFsZWMMNMHgLEN8GQKFBQDYB4B4HgK1qhB4PoIQB4GkKQXEbEAaq8LscsNAAALxglAA",
  ),
);